Home / 709,857.59-979,625.00-403,977.92

Finding the Fourth Proportional to 709,857.59, 979,625.00 and 403,977.92

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Solution

The fourth proportional to 709,857.59, 979,625.00 and 403,977.92 is: 557,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,857.59 : 979,625.00 = 403,977.92 : x
  2. Step 2: Convert to fraction form
    709,857.59/979,625.00 = 403,977.92/x
  3. Step 3: Cross multiply
    709,857.59x = 979,625.00 × 403,977.92
  4. Step 4: Simplify right side
    709,857.59x = 395,746,865,991.82
  5. Step 5: Solve for x
    x = 395,746,865,991.82/709,857.59
  6. Step 6: Final answer
    x = 557,501.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.